Not enough days in 1991 season to compile WAA record.
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19910418 | XXXXX | -0.19 | NYN |
| 19910502 | XXXXX | -0.11 | NYN |
| 19910516 | XXXXX | 0.12 | NYN |
| 19910530 | XXXXX | 0.43 | NYN |
| 19910613 | XXXXX | 0.54 | NYN |
| 19910627 | XXXXX | 0.77 | NYN |
| 19910714 | +099+ | 1.65 | NYN |
| 19910728 | +103+ | 1.89 | NYN |
| 19910811 | +143+ | 1.47 | NYN |
| 19910825 | XXXXX | 1.29 | NYN |
| 19910908 | XXXXX | 0.60 | NYN |
| 19910922 | XXXXX | 0.38 | NYN |
| 19911006 | XXXXX | 0.19 | NYN |
Gregg Jefferies Post Season Games
| Rank | WAA | BA | OBP | PA | Rbis | Runs | Tm |
|---|---|---|---|---|---|---|---|
| XXXXX | -0.28 | 0.333 | 0.438 | 32 | 1 | 3 | NYN |
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